feat: add a prehook example for borrow dai and swap

[meetmangukiya]

Uses maker protocol to mint DAI using ETH as collateral on the fly in the prehook before the swap is executed.

[meetmangukiya]

output

$ ts-node examples/mintDaiAndSwap.ts
Starting anvil...
anvil started at: http://127.0.0.1:8545
Default signers:
0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80 => 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266
0x59c6995e998f97a5a0044966f0945389dc9e86dae88c7a8412f4603b6b78690d => 0x70997970C51812dc3A010C7d01b50e0d17dc79C8
0x5de4111afa1a4b94908f83103eb1f1706367c2e68ca870fc3fb9a804cdab365a => 0x3C44CdDdB6a900fa2b585dd299e03d12FA4293BC
0x7c852118294e51e653712a81e05800f419141751be58f605c371e15141b007a6 => 0x90F79bf6EB2c4f870365E785982E1f101E93b906
0x47e179ec197488593b187f80a00eb0da91f1b9d0b13f8733639f19c30a34926a => 0x15d34AAf54267DB7D7c367839AAf71A00a2C6A65
0x8b3a350cf5c34c9194ca85829a2df0ec3153be0318b5e2d3348e872092edffba => 0x9965507D1a55bcC2695C58ba16FB37d819B0A4dc
0x92db14e403b83dfe3df233f83dfa3a0d7096f21ca9b0d6d6b8d88b2b4ec1564e => 0x976EA74026E726554dB657fA54763abd0C3a0aa9
0x4bbbf85ce3377467afe5d46f804f221813b2bb87f24d81f60f1fcdbf7cbf4356 => 0x14dC79964da2C08b23698B3D3cc7Ca32193d9955
0xdbda1821b80551c9d65939329250298aa3472ba22feea921c0cf5d620ea67b97 => 0x23618e81E3f5cdF7f54C3d65f7FBc0aBf5B21E8f
0x2a871d0798f97d79848a013d4936a73bf4cc922c825d33c1cf7073dff6d409c6 => 0xa0Ee7A142d267C1f36714E4a8F75612F20a79720
ensuring all default signers have 10000.0 ether
Deploying COWShed...
verifying deployed addresses has code...
impersonating ENS ownership for cowhooks.eth
COWShed deployed {
  factory: '0x41219a0a9C0b86ED81933c788a6B63Dfef8f17eE',
  implementation: '0x82A9286dB983093Ff234cefCea1d8fA66382876B',
  proxyInitCode: '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'
}
Computed proxy address for user 0x70997970C51812dc3A010C7d01b50e0d17dc79C8 is 0xc5f4EEF1A75E8bAF0DE28C9e5dd1C3Ed3BB189d8
wrapping 10.0 ether for 0x70997970C51812dc3A010C7d01b50e0d17dc79C8...
user 0x70997970C51812dc3A010C7d01b50e0d17dc79C8 hopes 0xc5f4EEF1A75E8bAF0DE28C9e5dd1C3Ed3BB189d8..
tx succeeded: vat.hope: 0x81c5569b891eab7bf6673f9b8f81345792d5c52388ea1db9024ce8f45f2f2c2f
approving 10000000000000000000(n) 0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2(token) tokens of 0x70997970C51812dc3A010C7d01b50e0d17dc79C8(owner) to 0x2F0b23f53734252Bda2277357e97e1517d6B042A(spender)...
tx succeeded: undefined: 0x351fdb4b9bb86063268ecf937f13d788e399c62a2ab2c3c554c4b6a41dbbef8a
hash to sign 0x55d7a45527332ca75d08f3d30a4e22761270f68798a748757bc0c0ceb1e19011
actual signature 0x0209a21fad2bf1f1385b31a12bce6be3687412221887ac2e728e29a8421ab6e1 0x79996877c618dffed312057a086cc53c95303c1822b5f164518fd32f650751d3 28
approving 8000000000000000000000(n) 0x6b175474e89094c44da98b954eedeac495271d0f(token) tokens of 0x70997970C51812dc3A010C7d01b50e0d17dc79C8(owner) to 0xC92E8bdf79f0507f65a392b0ab4667716BFE0110(spender)...
Creating order for user: 0x70997970C51812dc3A010C7d01b50e0d17dc79C8 {
  sellToken: '0x6b175474e89094c44da98b954eedeac495271d0f',
  buyToken: '0xdef1ca1fb7fbcdc777520aa7f396b4e015f497ab',
  receiver: '0xc5f4EEF1A75E8bAF0DE28C9e5dd1C3Ed3BB189d8',
  sellAmount: 8000000000000000000000n,
  buyAmount: 100000000000000000000n,
  validTo: 1716917322,
  appData: '',
  feeAmount: 0n,
  kind: 'sell',
  partiallyFillable: true,
  sellTokenBalance: 'erc20',
  buyTokenBalance: 'erc20'
}
Create order tx 0x70e4ac68753f2e94cca21ddb7d79acaeeb552d7b901af29c884b08483ea4f224
Settling order for user: 0x70997970C51812dc3A010C7d01b50e0d17dc79C8 {
  sellToken: '0x6b175474e89094c44da98b954eedeac495271d0f',
  buyToken: '0xdef1ca1fb7fbcdc777520aa7f396b4e015f497ab',
  receiver: '0xc5f4EEF1A75E8bAF0DE28C9e5dd1C3Ed3BB189d8',
  sellAmount: 8000000000000000000000n,
  buyAmount: 100000000000000000000n,
  validTo: 1716917322,
  appData: '0x4f58ec40dd72902f8966f3e04b0f598d37c5dfa2f2fa4a5c6c70b03f28cd2b68',
  feeAmount: 0n,
  kind: 'sell',
  partiallyFillable: true,
  sellTokenBalance: 'erc20',
  buyTokenBalance: 'erc20'
}
Settle tx 0x33a07efd0d930044fa4b53639fa7b863bc2139d4f145e7a5783793e09486d559
resolving name 0x70997970c51812dc3a010c7d01b50e0d17dc79c8.cowhooks.eth
resolving name 0x70997970C51812dc3A010C7d01b50e0d17dc79C8.cowhooks.eth
{
  resolvedAddressLowerCase: '0xc5f4EEF1A75E8bAF0DE28C9e5dd1C3Ed3BB189d8',
  resolvedAddressChecksummed: '0xc5f4EEF1A75E8bAF0DE28C9e5dd1C3Ed3BB189d8',
  proxyName: '0x70997970C51812dc3A010C7d01b50e0d17dc79C8.cowhooks.eth',
  proxyAddress: '0xc5f4EEF1A75E8bAF0DE28C9e5dd1C3Ed3BB189d8',
  userAddress: '0x70997970C51812dc3A010C7d01b50e0d17dc79C8'
}